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This is a problem common to users of electronic scales, common problems in our electronic scales.
However, in the thunderstorm season, there are many reasons for such failures. To solve the problem that the electronic scale weighs and counts the old ones, the fault classification method is as follows:
1. Check if the monitor is connected to the mains lead of the electronic weighbridge and if it is damaged, change the thread.
2. Check whether the junction box is filled with water or steam. Replace the junction box.
3. Check the wiring of the sensor for cracks. Check if the baud rate of each sensor is normal and whether the sensor is damaged. If there is a broken wire, or if there is a damage sensor, use an analog sensor to check the compression capacitance in the display. Whether it is damaged by aging, if it can use abrasive paper or trowel to rub off its contact surface, it can be firmly connected again.
5. Check that the weighing instrument and the mains plug or socket may cause oxidation during long-term use.
6. If the plug or socket is soaked in 10% dilute hydrochloric acid for 10 minutes, then blow or dry with a hair dryer. 7. Inspect the sensor for damage or drift. If yes, remove all sensor wirings until they are left alone. Only then connect the sensors one by one, and at the same time observe whether the instrument display is normal or not, then you can judge the damaged sensor. Replace it to solve the problem.
8. Check whether there are loose feet or unbalanced scales on the electronic scales. If there is a re-enhancement of the scale feet or adjust the level of the four scales, you can check them according to the above-mentioned seven items, and find out the cause of the problem can be solved. You can also call 9. When you are using electronic scales, has there ever been a phenomenon that electronically scaled numbers will appear to jump, then do you know how this happened? Kunming ground scales know that the following reasons will cause the electronic scales to jump. Which of yours? First, the power supply voltage is unstable. If the power supply is not added, causing the digital operating system to exceed the normal operating voltage range of the instrument, a digital transition phenomenon will occur. Therefore, it is best to configure a stabilized voltage supply.
10. The junction box is not well sealed and the humidity in the box is too high. Open the junction box to see if there is any water droplets or moisture. Dry it out or dry it with a hair dryer. The fault can be eliminated. Replace the junction box if necessary.
11. Damage to the main line of the weighbridge. Some distances between the scale body and the instrument are too large. There is an exposed part of the main line between the scale body and the instrument. There may be human damage or rat bites. The metal shield will not work or the connection will not be firm, causing digital jumps. Measure the main line with a multimeter's resistance gauge to ensure that each strand is an independent channel and that the connection is solid, otherwise the main line is replaced.
12. The circuit board inside the junction box is damaged. The long-term use of the terminal can cause oxidation corrosion, oxidation and corrosion of the joint part off, resulting in loose pressure lines, so that the instrument digital jump. At this point, the contact surface can be rubbed off with sandpaper or a guillotine knife, and the connection can be re-established and the failure phenomenon can be eliminated. The long-term use of multi-turn resistors can also cause internal metal surfaces to become oxidized, making the digital instability and jumps. At this time, replacing the multi-turn resistors with the same resistance can eliminate the fault.
13. The plug or socket is oxidized. Long-term use of the meter and the main plug or socket may also cause oxidation, making the connection resistance unstable. The method is to soak the plug or socket with 10% dilute hydrochloric acid for 10 minutes, then dry it with a hair dryer or dry it, or replace it (Note: The soldering iron should be as hot as possible during the replacement, once soldered, not at the soldering Use it multiple times to avoid solder oxidation. Six, electronic pound sensor damage, drift. When a sensor is damaged or drifts, it can also cause digital transitions to become unstable. In general, there is a sensor drift or damage. To determine which specific fault only, you can use a direct connection to the main line. That is, remove all the sensor wirings one by one until they are left, and then connect the sensors one by one. At the same time, observe whether the instrument display is normal or not, and then determine the damaged sensor. Replace it to solve the problem. VII. The foundation of the loadometer is not strong. During long-term use, the impact or overload of some vehicles may cause the sensors to be subjected to excessive force, causing the foundation to loosen, causing the levelness between various sensors to be destroyed, thereby causing the digital jump of the instrument. In this case, it is necessary to reinforce the foundation and find a good level.
The floor scale has a leap solution
When electronic truck scales are weighed, there will be no stable figures if there is a jump in the weighing data.